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Aptitude Questions: Number Series Set 16

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Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

  1. 67, 68, 64, 73 , ?
    A)57
    B)53
    C)65
    D)73
    Answer – A)57
    Solution:
    67+1^2 = 67+1 = 68
    68-2^2 = 68-4 = 64
    64+3^2 = 64+9 = 73
    73-4^2 = 73-16 = 57

  2. 131, 138, 154, 188 ?
    A)243
    B)249
    C)224
    D)232
    Answer – B)249
    Solution:
    131+7 = 138………….(7)
    138+16 = 154…………(7+9 = 16)
    154+34 = 188…………(16+18 = 34)
    188+61 = 249………..(34+27 = 61)

  3. 657, 679, 712, 756, ?
    A)814
    B)824
    C)811
    D)921
    Answer – C)811
    Solution:
    657+22 = 679
    679+33 = 712
    712+44 = 756
    756+55 = 811

  4. 27, 54, 324, 5832, ?
    A) 341982
    B) 314892
    C) 341928
    D) 314928
    Answer – D) 314928
    Solution:
    27*2=54
    54*6 =324…..(2*3 =6)
    324*18 = 5832….(6*3)
    5832*54 =314928….(18*3=54)

  5. 39, 40, 162, 1461, ?
    A)37231
    B)23737
    C)23380
    D)27733
    Answer – C)23380
    Solution:
    39*1^2+1 = 39+1 = 40
    40*2^2+2 = 40*4+2 = 162
    162*3^2+3 = 162*9+3 = 1461
    1461*4^2+4 = 23380

  6. 23, 22, 40, 111, ?
    A)428
    B)563
    C)462
    D)436
    Answer – A)428
    Solution:
    23*1 -1^2 = 23-1 = 22
    22*2-2^2 = 44 – 4 = 40
    40*3-3^2 = 120 – 9= 111
    111*4-4^2 = 444-16 = 428

  7. 13, 27, 83, 335, ?
    A)1729
    B)1679
    C)1972
    D)1277
    Answer – B)1679
    Solution:
    13*2+1 = 27
    27*3+2 = 83
    83*4+3 = 335
    335*5+4 = 1679

  8. 217, 221, 231, 249, ?
    A)246
    B)264
    C)256
    D)277
    Answer – D)277
    Solution:
    217+(3^2-5) = 217+4 = 221
    221+(4^2-6) = 221+10 = 231
    231+(5^2-7) = 231+18 = 249
    249+(6^2-8) = 249+28 = 277

  9. 156, 76, 150, 73 ,144, ?
    A)75
    B)86
    C)70
    D)88
    Answer – C)70
    Solution:
    156÷2-2 = 76
    76*2-2 = 150
    150÷2-2 = 73
    73*2 – 2 = 144
    144 ÷2-2 = 70

  10. 1723, 1602, 1521, 1472, ?
    A)1447
    B)1432
    C)1471
    D)1747
    Answer – A)1447
    Solution:
    1723-11^2 = 1723 – 121 =1602
    1602-9^2 = 1602-81 = 1521
    1521-7^2 = 3248 – 49 = 1472
    1472-5^2 = 3199-25 = 1447

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